Vibratory rotary device



J1me 1950 T. J. SCHUMACHER 2,512, 8

VIBRATORY ROTARY DEVICE Filed July 24, 1946 IN VEN TOR. Jrrerzce Jflc/zzmzacer llama/44o,

Patented June 20, 1950 2,512,288 VIBRATORY ROTARY DEVICE. Terrence J.Schumacher, Grayslake, Ill. 7 Application July 24, 1946;. Serial No.685930 7 3 Claims. 1

This invention relates, in general, to a vibratory rotary device, andhas particular relation to an electrically operated device rotated byvibration and adapted for use: with model airplanes, or as a toy,although not limited to such use.

One of the main objects of the present invention is to provide a devicehaving a vibratory member adapted to be vibrated by an electromagnet,and in which a propeller or other rotary member is adapted to be rotatedby vibration of said vibratory member.

Another object of the invention is to provide in a device of thecharacter described, means for reversing the direction of rotation ofthe rotary member; more particularly, a mounting for the vibratorymember, which mounting is adapted to be manipulated to reverse theangularity of the vibratory member relative to the pole end of theelectromagnet whereby to reverse the direction of rotation of the rotarymember.

Another object of the invention is to provide a device of the characterdescribed having various features of novelty and advantages, and whichis particularly characterized by its simplicity in construction, itslightness in weight, its economy in manufacture, its adaptability foruse for rotating the propeller of a model airplane or the like, or as atoy, and its efiectiveness in use for the purposes set forth.

Further objects and advantages of the invention will appear from thefollowing detailed description, taken in connection with theaccompanying drawing in which:

Figure l is a side elevation and more or less diagrammatic view of adevice embodying the present invention;

Figure 2 is a top plan view of the device shown in Figure 1; and

Figure 3 is a detail section taken on the line 33 of Figure 1.

Referring now in detail to the drawing, the device shown in Figures 1,2, and 3 comprises an angular bracket I formed, for example, of iron orsteel and having an integral outturned. or lateral lug 2 on the leg Iathereof. An electromagnet 3, suitably mounted at 4 on the other leg lbof the bracket I, comprises a coil 5 and a core 6.

The armature is in the form of a flat spring strip l secured to the lug2, for example, by bending integral side projections 8 on the lug 2 overand into firm holding engagement with the adjacent end of the strip 1.The strip extends adjacent the pole end of the electromagnet 3 to bevibrated by energization of the electromagnet, with. the width of thestrip I presented at an angle to the pole end of the electromagnet 3 asshown in detail in Figure 3.

The rotary member 9 is in the form of a propeller for use, for example,as the propeller of a. small model airplane, or the propeller may beused as a toy or otherwise as desired. An escutcheon pin l0 looselycouples the propeller 9 to the adjacent end of the strip 1, whereby thepropeller 9 is rotated about the pin Ill by vibration of the strip 7when the electromagnet 3 is energized. The pin I0 is shown as headed atits free end at II. The shank of the pin it! passes loosely through ahole I2 at the axis of the propeller 9, and the pin I0 is secured to theadjacent end of the strip 1, for example, by soldering, as at I3.

The coil 5 of the electromagnet 3 is connected in circuit with a belltype transformer I4 by conductors I5. The transformer I4 has conductormeans I6 provided with suitable connector means I! for connecting thetransformer in circuit, for example, with a -volt A.-C. outlet, or Witha battery or other suitable source of current.

A current interrupter I8 has cooperating contact arms I9 and 20connected into the circuit between the transformer l4 and the coil 5 ofthe electromagnet 3. One contact arm I3 is secured to the lug 2, forexample, with the attachment of the flat spring strip I thereto, and theother arm 20 may be secured to the adjacent leg I a of the bracket I.The circuit between the bell type transformer I4 and the coil 5 isthrough one conductor I5 to binding post 22, from the post 22 to the arm20, and thence through the arm I 9 and coil 4 to the other conductor I 5and to the transformer I4.

In use, when the coil 4 of the electromagnet 3 is energized by closingthe circuit, the strip 1 is vibrated and the vibration of the strip 1rotates the vibratory member or propeller 9 through the loose couplingl0 between the member 9 and the strip 1. The angularity of the strip 1relative to the pole end of the electromagnet 3 determines the directionof rotation of the propeller 8.

The lug 2 is adapted to be engaged between the fingers, or by a suitabletool, and twisted to reverse the angularity of the strip 1 relative tothe pole end of the electromagnet 3. Then when the electromagnet 3 isenergized with the angularity of the strip 1 thus reversed, thepropeller 9 will be rotated in the opposite direction by vibration ofthe strip I. Other means for adjusting the direction of rotation of thepropeller 9 are contemplated within the scope of the present invention.The strip 1 is shown in dotted lines in Figure 3 in position of reverseangularity, as above described.

The embodiment of the invention shown in the drawing is for illustrativepurposes only, and it is to be expressly understood that said drawingand the accompanying specification are not to be construed as adefinition of the limits or scope of the invention, reference being badto the appended claims for that purpose.

I claim: e

1. In a device of the class described, in com bination, an electromagnethaving a core, a support, a vibratory member adapted to be vibrated bysaid electromagnet and comprising a fiat, narloosely mounted at its axison said pin for rotation thereon in a plane at substantially rightangles to the direction in which said strip extends, the angularity ofsaid strip relative to the adjacent end of said core causing rotation ofsaid rotary member on said pin when said strip is vibrated by saidelectromagnet.

2. A device according to claim 1 wherein the mounted end of said springstrip is supported for rotation of the strip about its longitudinal axiswhereby to reverse the acute angle which the width of the strip presentsto the adjacent end of the core of the electromagnet.

3. A device according to claim 1 wherein the electromagnet has a coilprovided with an electric circuit and wherein there is a circuitinterrupter in said circuit.

TERRENCE J. SCI-IUMACHER.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 664,382 Chapman Dec. 25, 1900FOREIGN PATENTS Number Country Date 197,679 Great Britain Nov. 10, 1924

